Dimir Keyrune
- Color: Colorless
- Type: Artifact
- Rarity: Uncommon
- Set: Gatecrash
[t]: Add [u] or [b] to your mana pool.
[u][b]: Dimir Keyrune becomes a 2/2 blue and black Horror until end of turn and is unblockable this turn.
A key that slips through every lock.